28707979 is an odd 8-digits composite number following 28707978
and preceding 28707980 . In scientific notation, it is written as 2.8707979 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 27272256 positive integers (up to 28707979) that are relatively prime to 28707979.
28707979 has 8 divisors, whose sum is 30160800
The reverse of 28707979 is 97970782
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million seven hundred seven thousand nine hundred seventy-nine
Scientific notation
2.8707979 × 10^7
Engineering notation
2.8707979 × 10^6
Prime Factorization
23 × 149 × 8377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28707979
Product of the distinct prime numbers
The prime factorization of 28707979 is 23 × 149 × 8377.
Since it has a total of 3 prime factors.
10 , 8 , 76 , 99 , 622 , 934 , 2444 , 7796 , 58984 , 50047 , 808404 , 616475 , 79577 , 571089 , 13261951 , 61060372 , 118770798 , 818471321 , 3361895934 , 7978409667
n×2
57415958
n×3
86123937
n×4
114831916
n×5
143539895
n÷2
14353989.5
n÷3
9569326.3333333
n÷3
7176994.75
n÷5
5741595.8
n2
824148058264441
n3
2.3659625149546E+22
n4
6.7922002194105E+29
n5
1.9499034126263E+37
2 √n
5357.9827360677
3 √n
306.19695907734
4 √n
73.19824271161
5 √n
31.017052416697
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28707978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28707979 can be divided by 8 positive divisors.
The sum of these divisors (counting 28707979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101100000110010001011
3
Ternary
2000000111221111
4
Quaternary
1231200302023
5
Quinary
24322123404
6
Senary
2503151151
8
Octal
155406213
10
Decimal
28707979
12
Duodecimal
97454b7
16
Hexadecimal
1b60c8b
20
Vigesimal
8j89ij
36
Base36
h3b7v
md5
032881b6ee0d19ba86e4aa293491a039
sha1
cdbae538ab11141a1ba32823ecf0640d9b4e04f8
sha256
95309a4b039710d216bd5956267d9530f62212fb28409971483ab6c058381641
sha512
6fd62037196c17f4cc26d9e1651f84ca8440e544b69b74dd66f1850fe51066f12bb9a97968d049f41907995f863d8357e59bfb19cc6d9a7ce136a4425ee0623b
ripemd-160
d6cc12f15c35b9a0ed3c162898f5c9aa0a2d84f0
Diameter
57415958
Circumference
180377551.85162
Area
2.5891374853139E+15
Volume
9.9105206075337E+22
Surface area
1.0356549941255E+16
Circumference
180377551.85162
Perimeter
114831916
Area
824148058264441
Diagonal
40599213.250122
Surface area
4944888349586646
Volume
2.3659625149546E+22
Space diagonal
49723678.21062
Perimeter
86123937
Area
3.5686657746831E+14
Altitude
24861839.10531
Surface area
3.5686657746831E+14
Volume
2.7883135639293E+21
Height
13533071.083374